418423 has 2 divisors, whose sum is σ = 418424. Its totient is φ = 418422.

The previous prime is 418391. The next prime is 418427. The reversal of 418423 is 324814.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 418423 - 2⁵ = 418391 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 418394 and 418403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (418427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209211 + 209212.

It is an arithmetic number, because the mean of its divisors is an integer number (209212).

2⁴¹⁸⁴²³ is an apocalyptic number.

418423 is a deficient number, since it is larger than the sum of its proper divisors (1).

418423 is an equidigital number, since it uses as much as digits as its factorization.

418423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 768, while the sum is 22.

The square root of 418423 is about 646.8562436894. The cubic root of 418423 is about 74.7948765400.

It can be divided in two parts, 418 and 423, that added together give a square (841 = 29²).

The spelling of 418423 in words is "four hundred eighteen thousand, four hundred twenty-three".